#include <stdio.h>

int a[27];

int main()
{
    int i,n,j = 1;
    a[1] = 1;
    printf("The original order of cards is (r:rad b:block):\n");
    for(i = 2;i <= 26;i++)
    {
        n = 1;
        do
        {
            if(j>26)
            j = 1;
            if(a[j])
            j++;
            else
            {
                if(n == 3)
                a[j] = i;
                j++;
                n++;
            }
        } while (n<=3);
    }
    for(i = 1;i <= 26;i++)
    {
        printf(" %c",a[i]>13?'r':'b');
        printf("%d",a[i]>13?a[i]-13:a[i]);
    }
    printf("\n");
}